Estimation of Atmospheric Optical Turbulence Profile Based on Back Propagation Neural Network

Cuicui Bi; Chun Qing; Xianmei Qian; Gang Sun; Qing Liu; Wenyue Zhu; Manman Xu; Yajuan Han; Yiming Guo

doi:10.3788/LOP202158.2101001

Laser & Optoelectronics Progress, Volume. 58, Issue 21, 2101001(2021)

Estimation of Atmospheric Optical Turbulence Profile Based on Back Propagation Neural Network

Cuicui Bi^1,2,3, Chun Qing^1,3, Xianmei Qian^1,3、*, Gang Sun^1,3, Qing Liu^1,3, Wenyue Zhu^1,3, Manman Xu^1,2,3, Yajuan Han^1,2,3, and Yiming Guo^1,2,3

Author Affiliations

¹Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei , Anhui 230031, China

²Science Island Branch of Graduate School, University of Science and Technology of China, Hefei , Anhui 230026, China

³Advanced Laser Technology Laboratory of Anhui Province, Hefei , Anhui 230037, China

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Figures & Tables(9)

Fig. 1. Micro-thermometer measurement system. (a) Micro-thermometer; (b) platinum wire probe

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Fig. 2. Measurement experiment of turbulence meteorological radiosonde

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Fig. 3. Topological structure diagram of GA-BP neural network

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Fig. 4. Errors of training set and validation set for different number of neurons in hidden layer.（a） $M_{A E}$ ;（b） $M_{R E}$

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Fig. 5. Flow chart of GA-BP neural network algorithm

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Fig. 6. Training process of GA-BP neural network algorithm

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Fig. 7. Measured and estimated values for turbulence profile

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Fig. 8. BIAS, RMSE, σ, and average profile of $l o g C_{n}^{2}$ between turbulence sounding and model estimation. (a) BIAS; (b) RMSE; (c) $σ$ ; (d) average profile of $l o g C_{n}^{2}$

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Table 1. Sounding records of turbulence radiosonde

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Table 1. Sounding records of turbulence radiosonde

No.	Date	Launching time	Termination time	Termination height /m	No.	Date	Launching time	Termination time	Termination height /m
1#	2017-11-15	18∶09	19∶40	32510	20#	2017-12-07	07∶40	09∶16	32480
2#	2017-11-17	18∶06	19∶36	32300	21#	2017-12-07	18∶26	19∶49	31350
3#	2017-11-19	07∶42	09∶12	32300	22#	2017-12-08	18∶53	20∶22	32020
4#	2017-11-21	18∶03	19∶29	28630	23#	2017-12-09	07∶42	09∶00	31970
5#	2017-11-22	07∶47	09∶20	32560	24#	2017-12-09	18∶55	20∶26	32110
6#	2017-11-22	18∶50	20∶22	32630	25#	2017-12-10	07∶47	09∶18	32110
7#	2017-11-24	07∶39	09∶04	32480	26#	2017-12-10	19∶00	20∶39	31820
8#	2017-11-25	07∶45	09∶19	32670	27#	2017-12-11	07∶43	09∶21	32910
9#	2017-11-25	18∶47	20∶15	32080	28#	2017-12-11	19∶00	20∶23	29740
10#	2017-11-27	07∶37	09∶17	31350	29#	2017-12-12	07∶40	09∶00	31560
11#	2017-11-27	18∶56	20∶32	33270	30#	2017-12-12	18∶59	20∶32	32960
12#	2017-11-28	07∶50	09∶10	31210	31#	2017-12-13	18∶59	20∶21	32100
13#	2017-11-28	18∶55	20∶27	33060	32#	2017-12-15	19∶01	20∶34	32700
14#	2017-11-29	07∶39	09∶07	32190	33#	2017-12-18	19∶00	20∶32	32670
15#	2017-11-29	18∶53	20∶20	30600	34#	2017-12-19	07∶35	08∶58	28400
16#	2017-12-02	08：07	09∶39	32100	35#	2017-12-19	19∶01	20∶26	31690
17#	2017-12-04	07∶44	09∶28	33090	36#	2017-12-20	19∶00	20∶25	33250
18#	2017-12-04	18∶57	20∶29	30920	37#	2017-12-24	19∶00	20∶36	32830
19#	2017-12-05	07∶41	09∶13	32260	38#	2017-12-27	07∶49	09∶06	30140

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Cuicui Bi, Chun Qing, Xianmei Qian, Gang Sun, Qing Liu, Wenyue Zhu, Manman Xu, Yajuan Han, Yiming Guo. Estimation of Atmospheric Optical Turbulence Profile Based on Back Propagation Neural Network[J]. Laser & Optoelectronics Progress, 2021, 58(21): 2101001

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Paper Information

Category: Atmospheric Optics and Oceanic Optics

Received: Feb. 21, 2021

Accepted: Mar. 8, 2021

Published Online: Nov. 1, 2021

The Author Email: Xianmei Qian (qianxianmei@aiofm.ac.cn)

DOI:10.3788/LOP202158.2101001

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laser devices and laser physics

Lasers and Laser Optics

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Instrumentation, Measurement and Metrology